RECON: TNO occultation with 589683

Event between (589683) 10RF43 and star GA0660:39225691 with event index number of 2686386

Geocentric closest approach at 2022/09/15 09:13:14 UTC

J2000 position of star is 23:50:16.6 -22:53:18
Equinox of date position of star is 23:51:24.3 -22:46:00
Stellar brightness G=15.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 74% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 54.4 AU from the Sun and 53.5 AU from the Earth.
The TNO is moving 26.2 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 97 seconds.
The 1-sigma cross-track error in the shadow position is 2600 km.
The sky-plane scale is 38791.9 km/arcsec.

The TNO has an absolute magnitude Hv=3.9
Diameter=990.9 km assuming a 5% albedo -- 37.8 sec chord
Diameter=404.5 km assuming a 30% albedo -- 15.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 589683, (2022/09/15 09:13UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:54.0 -29:30:05  1.2 13.57  81
Diphda         00:44:43.7 -17:51:44  2.0 13.41  55
PPM 275437     23:54:31.1 -24:06:11  6.5  1.51  68
PPM 275372     23:50:20.0 -23:05:46  8.2  0.42  68
PPM 275398     23:51:35.5 -22:46:21  9.6  0.03  68
589683         23:51:26.9 -22:45:43 15.2        68
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 5.0 sigma about the mid-time.
The median site spacing is 18.4 km RECON observability=0.7 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 09:11:30 -36.7 Dark Up 17.9 190.8 Really Low 09:02:55 - 09:20:04 15910
Kamloops 09:11:24 -34.0 Dark Up 15.4 193.6 Really Low 09:02:49 - 09:19:58 15904
Peachland 09:11:23 -34.7 Dark Up 16.2 194.2 Really Low 09:02:48 - 09:19:57 15851
Kelowna 09:11:22 -34.5 Dark Up 16.0 194.5 Really Low 09:02:47 - 09:19:56 15846
Summerland 09:11:20 -34.8 Dark Up 16.3 194.3 Really Low 09:02:45 - 09:19:54 15842
Penticton 09:11:22 -34.9 Dark Up 16.4 194.4 Really Low 09:02:47 - 09:19:56 15836
Oliver 09:11:21 -35.2 Dark Up 16.7 194.4 Really Low 09:02:47 - 09:19:56 15822
Anarchist Mountain Observatory 09:11:22 -35.3 Dark Up 16.8 194.6 Really Low 09:02:47 - 09:19:56 15810
Tonasket 09:11:21 -35.6 Dark Up 17.1 194.6 Really Low 09:02:46 - 09:19:55 15798
Okanogan 09:11:21 -35.9 Dark Up 17.5 194.5 Really Low 09:02:46 - 09:19:55 15789
Manson/Chelan 09:11:23 -36.5 Dark Up 18.0 194.0 Really Low 09:02:48 - 09:19:57 15786
Brewster 09:11:22 -36.2 Dark Up 17.8 194.3 Really Low 09:02:47 - 09:19:56 15784
Wenatchee 09:11:23 -37.0 Dark Up 18.5 193.9 Really Low 09:02:49 - 09:19:58 15771
Ellensburg 09:11:23 -37.5 Dark Up 19.0 193.7 Really Low 09:02:49 - 09:19:58 15760
Yakima 09:11:23 -37.8 Dark Up 19.4 193.7 Really Low 09:02:49 - 09:19:58 15743
Toppenish/White Swan 09:11:23 -38.0 Dark Up 19.6 193.9 Really Low 09:02:48 - 09:19:57 15728
The Dalles 09:11:24 -38.9 Dark Up 20.4 193.2 Low 09:02:50 - 09:19:59 15718
Goldendale 09:11:25 -38.6 Dark Up 20.2 193.5 Low 09:02:51 - 09:20:00 15717
Maupin 09:11:25 -39.3 Dark Up 20.8 193.3 Low 09:02:51 - 09:20:00 15696
Pasco 09:11:20 -37.7 Dark Up 19.5 195.1 Really Low 09:02:45 - 09:19:54 15682
Sisters 09:11:27 -40.2 Dark Up 21.8 192.9 Low 09:02:52 - 09:20:01 15671
PNWRO 09:11:20 -37.9 Dark Up 19.6 195.3 Really Low 09:02:45 - 09:19:54 15663
Redmond 09:11:24 -40.1 Dark Up 21.7 193.3 Low 09:02:49 - 09:19:58 15657
Bend 09:11:24 -40.4 Dark Up 22.0 193.2 Low 09:02:50 - 09:19:59 15651
Oregon Observatory 09:11:25 -40.6 Dark Up 22.1 193.1 Low 09:02:51 - 09:20:00 15647
La Pine/Gilchrist 09:11:25 -40.8 Dark Up 22.4 193.0 Low 09:02:51 - 09:20:00 15639
North Lake 09:11:22 -41.0 Dark Up 22.7 193.7 Low 09:02:48 - 09:19:57 15599
Chiloquin 09:11:28 -41.9 Dark Up 23.5 192.8 Low 09:02:54 - 09:20:03 15597
Klamath Falls 09:11:26 -42.2 Dark Up 23.8 192.9 Low 09:02:52 - 09:20:01 15577
Paisley 09:11:22 -41.4 Dark Up 23.2 194.1 Low 09:02:48 - 09:19:57 15559
Lakeview 09:11:22 -41.8 Dark Up 23.6 194.3 Low 09:02:48 - 09:19:57 15527
Sleaford 09:10:54 -28.3 Dark Up 11.0 206.6 Really Low 09:02:19 - 09:19:28 15518
Fall River/Burney 09:11:25 -43.1 Dark Up 24.9 193.4 Low 09:02:51 - 09:20:00 15503
Cedarville 09:11:20 -42.3 Dark Up 24.2 194.6 Low 09:02:46 - 09:19:55 15487
Susanville 09:11:23 -43.5 Dark Up 25.4 194.2 Low 09:02:49 - 09:19:58 15444
Greenville 09:11:24 -43.8 Dark Up 25.7 194.0 Low 09:02:50 - 09:19:59 15440
Gimple 09:11:23 -43.8 Dark Up 25.7 194.0 Low 09:02:48 - 09:19:57 15437
Quincy 09:11:24 -44.0 Dark Up 25.9 194.0 Low 09:02:49 - 09:19:58 15429
Portola 09:11:23 -44.0 Dark Up 25.9 194.5 Low 09:02:49 - 09:19:58 15405
Reno 09:11:22 -44.0 Dark Up 26.1 195.2 Low 09:02:47 - 09:19:56 15367
Carson City 09:11:21 -44.3 Dark Up 26.4 195.2 Low 09:02:46 - 09:19:55 15347
Gardnerville 09:11:21 -44.5 Dark Up 26.6 195.3 Low 09:02:47 - 09:19:56 15331
Yerington 09:11:21 -44.2 Dark Up 26.5 195.9 Low 09:02:46 - 09:19:55 15313
Hawthorne 09:11:17 -44.4 Dark Up 26.8 196.5 Low 09:02:43 - 09:19:52 15267
Lee Vining 09:11:21 -45.1 Dark Up 27.4 196.1 Low 09:02:46 - 09:19:55 15253
Bishop 09:11:18 -45.4 Dark Up 27.9 196.9 Low 09:02:43 - 09:19:52 15191
Tonopah 09:11:14 -44.3 Dark Up 26.9 197.9 Low 09:02:40 - 09:19:49 15188
CPSLO 09:11:25 -48.0 Dark Up 30.3 194.9 Up 09:02:50 - 09:19:59 15151
Beatty 09:11:13 -45.1 Dark Up 27.9 198.6 Low 09:02:38 - 09:19:47 15101
Indian Springs 09:11:09 -44.9 Dark Up 27.9 199.7 Low 09:02:34 - 09:19:43 15039
Wildwood 09:11:17 -48.3 Dark Up 31.0 197.2 Up 09:02:42 - 09:19:51 14997
Henderson 09:11:06 -45.0 Dark Up 28.2 200.5 Low 09:02:32 - 09:19:41 14979
Laughlin/Bullhead City 09:11:05 -45.5 Dark Up 28.9 201.0 Low 09:02:30 - 09:19:39 14907
Idyllwild 09:11:12 -47.7 Dark Up 30.9 199.2 Up 09:02:38 - 09:19:47 14901
Patrick 09:11:04 -45.0 Dark Up 28.5 201.7 Low 09:02:29 - 09:19:38 14895
Mohave Valley 09:11:06 -45.8 Dark Up 29.2 201.1 Low 09:02:31 - 09:19:40 14889
Kingman/Dolan Springs 09:11:05 -45.3 Dark Up 28.8 201.6 Low 09:02:31 - 09:19:40 14888
Lake Havasu City 09:11:06 -46.0 Dark Up 29.5 201.4 Low 09:02:31 - 09:19:40 14854
Dunrhomin 09:10:42 -36.9 Dark Up 21.2 208.9 Low 09:02:07 - 09:19:16 14853
Parker 09:11:05 -46.2 Dark Up 29.8 201.5 Low 09:02:30 - 09:19:39 14829
Calipatria 09:11:09 -47.6 Dark Up 31.1 200.5 Up 09:02:35 - 09:19:44 14812
Blythe 09:11:06 -46.8 Dark Up 30.4 201.4 Up 09:02:32 - 09:19:41 14807
Yuma 09:11:06 -47.5 Dark Up 31.3 201.5 Up 09:02:31 - 09:19:40 14747
George/Scottsdale 09:10:58 -45.3 Dark Up 29.4 204.0 Low 09:02:23 - 09:19:32 14702

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 589683, (2022/09/15 09:13UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 13.57  81
Diphda         00:43:35.7 -17:59:11  2.0 13.41  55
PPM 275437     23:53:20.9 -24:13:45  6.5  1.51  68
PPM 275372     23:49:09.6 -23:13:21  8.2  0.42  68
PPM 275398     23:50:25.1 -22:53:55  9.6  0.03  68
589683         23:50:16.6 -22:53:18 15.2        68
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:48:49 UT

Marc W. Buie, Southwest Research Institute

RECON